Top 10 Best API Security Testing Companies in 2025

1. Salt Security

Why We Picked It

Salt Security leads the 2025 API security ecosystem with its AI-powered approach to runtime protection, API discovery, and behavioral analytics.

Its platform is trusted by some of the world’s most data-intensive organizations, continuously monitoring for logic flaws and abuse patterns missed by traditional tools.

Salt’s risk-driven approach means it identifies shadow APIs and exposed sensitive data, helping teams maintain compliance and avoid regulatory fines.

In a threat landscape where attackers are increasingly leveraging AI and sophisticated methods, Salt’s intelligent threat detection engine stands out.

Specifications

Salt Security operates as a SaaS and hybrid model, supports REST, GraphQL, SOAP, and gRPC protocols, and includes native integrations for major CI/CD providers.

AI-based traffic analysis and anomaly detection offer 24/7 coverage. It provides posture assessment, real-time alerts, and automated remediation advice.

The solution supports compliance programs (GDPR, HIPAA, PCI), and includes dashboard analytics for audit reporting. Deployment ranges from cloud-native agents to inline appliances.

Features

The platform’s features include continuous API discovery, behavioral logic attack detection, contextual threat scoring, sensitive data tracking, and compliance posture monitoring.

Salt supports integration with SIEM/SOAR systems, provides developer-first remediation, and allows for extensive custom rule creation.

API intelligence dashboards help prioritize risks, and there’s automated mapping of data flows to ensure no endpoint goes unchecked.

Reason to Buy

Organizations seeking to proactively defend their APIs, reduce the risk of data leaks, and streamline compliance will find Salt Security essential.

Its real-time analytics, comprehensive visibility, and advanced threat detection capabilities make it an ideal fit for modern enterprises and critical infrastructure providers.

Pros

• Comprehensive runtime behavioral analytics
• Fast, automated API discovery
• Developer-focused remediation workflows
• Compliance automation
• Scalable to large API estates

Cons

• High cost for small teams
• Requires initial onboarding/tuning

✅ Best For: Enterprises with complex, high-risk API environments or advanced compliance requirements.

🔗 Try Salt Security here → "Salt Security Official Website"

2. Traceable

Why We Picked It

Traceable continues to impress with its full-lifecycle API security, combining dynamic payload-based testing, runtime analytics, and traffic-driven behavioral analysis.

Its strength lies in root-cause vulnerability tracing and rapid incident response, empowering both security and DevOps teams.

Traceable’s application maps and user session analytics reduce mean time to detect and remediate logical issues.

In 2025, Traceable bridges the gap between pre-production testing and runtime monitoring through effective contextual fuzzing and replay-based security assessments.

It offers deep coverage for the OWASP API Top 10, custom test suite creation, and granular vulnerability scoring.

This makes it a top choice for organizations looking to build API security into every stage of their development process, not just at runtime.

Specifications

Traceable is delivered as a SaaS solution with agent-based and agentless options. It supports automated API discovery, contextual fuzzing, and replay analysis for both public and private APIs.

The solution easily integrates into major CI/CD pipelines and provides reporting with vulnerability scoring (CVSS/CWE). Role-based access control and customizable alerting options are standard.

Features

Key features include dynamic API tracing, custom test suite scheduling, real-time threat analytics, sensitive data exposure prevention, integration with collaboration tools, and detailed remediation recommendations.

Flexible deployment models allow teams to optimize for scale, traffic, and API diversity.

Reason to Buy

Traceable is ideal for organizations looking for fast, actionable insights into API vulnerabilities and runtime threats.

It combines rapid scanning with deep analytics, making it suitable for dev-centric teams that need to secure APIs throughout the lifecycle.

Pros

• Dynamic fuzzing and replay-based testing
• Application/user session analytics
• Automated risk scoring
• Strong DevSecOps integrations
• Rich reporting and analytics

Cons

• Manual elements in test suite creation
• Some learning curve for advanced analytics

✅ Best For: DevSecOps teams who want CI/CD-centric, scalable API security with real-time risk context.

🔗 Try Traceable here → "Traceable AI Official Website"

3. Imperva

Why We Picked It

Imperva has established itself as a trusted leader in cloud security, extending its expertise into API protection—meeting the demands of large-scale, highly regulated environments.

Imperva’s automated positive security model offers a proactive posture, adapting in real time to new APIs as they are rolled out by dev teams, and automatically building protection based on uploaded API specs.

A robust suite of DAST capabilities and runtime protection ensures that both public and private APIs are covered.

Integration with Imperva’s core offerings (WAF, bot management) simplifies hybrid security management and gives customers a unified dashboard for threat analysis.

Enterprise-grade authentication and compliance support are key, and organizations benefit from automated vulnerability testing and reporting.

Specifications

Imperva’s API Security platform supports REST, SOAP, and GraphQL APIs. It offers SaaS and on-premises deployment, automatic discovery, customizable DAST coverage, reporting on test results, and runtime attack mitigation.

Integration with CI/CD and SIEM platforms is included, as well as role-based management.

Features

Features include automated API discovery, vulnerability scanning, runtime threat defense, centralized dashboard, positive security policy generation, and deep integration with Imperva’s WAF/bot products.

The platform ensures that even undocumented or legacy APIs receive appropriate coverage.

Reason to Buy

Imperva is a great fit for organizations already invested in Imperva security stacks, or any business seeking a unified platform for both application and API security that scales in large environments.

Pros

• Deep automation and integration with Imperva WAF
• Automated API inventory/discovery
• Built-in runtime protection
• Compliance-ready reporting
• Strong DAST capabilities

Cons

• Less “shift-left” coverage
• Pricing may be high for smaller operations

✅ Best For: Large enterprises looking to extend existing application security infrastructure to APIs effortlessly.

🔗 Try Imperva here → "Imperva Official Website"

4. APIsec

Why We Picked It

APIsec is a cutting-edge solution for organizations seeking continuous, automated API penetration testing that runs in parallel to deployment pipelines.

Known for its AI-powered attack simulations, the platform delivers rapid vulnerability findings throughout the SDLC.

APIsec excels in logic flaw detection and comprehensive endpoint scanning, going far beyond legacy DAST to simulate thousands of real-world attack vectors.

The platform empowers development and security teams to find and fix issues early, leveraging detailed remediation guidance and real exploit verification to reduce false positives.

APIsec integrates seamlessly with major CI/CD tools, offering automated ticketing for detected vulnerabilities.

Specifications

Delivered via SaaS, APIsec analyzes REST, GraphQL, SOAP APIs, supporting dynamic attack simulation, role-based policies, comprehensive coverage of the OWASP API Top 10, and in-depth reporting.

Integrates with development/ticketing workflows and operates with “no code” endpoint onboarding.

Features

Highlights include automated scan scheduling, attack simulation playbooks, penetration testing support, role-based reporting, real-time data flows, and analytics dashboards.

Ticketing integrations automate remediation workflows, and coverage extends to authentication/authorization, logic, and compliance gaps.

Reason to Buy

APIsec is the platform of choice for businesses aiming for deep, repeatable API pentesting without the bottleneck of traditional services, and for dev teams prioritizing continuous assessment.

Pros

• Rapid, automated attack simulation
• Full lifecycle coverage
• Deep business logic and endpoint scanning
• Granular analytics and reporting
• Direct ticketing/remediation integration

Cons

• Pricing tiering for very large environments
• Some advanced scenarios may require tuning

✅ Best For: Fast-moving development teams, SaaS platforms, and tech enterprises wanting repeatable, automated API pentests.

🔗 Try APIsec here → "APIsec Official Website"

5. StackHawk

Why We Picked It

StackHawk empowers organizations to “shift left” by integrating dev-native API security testing directly into source code repositories and CI/CD pipelines.

Its unique approach reveals shadow, zombie, and undocumented APIs from source, orchestrating automated scans for sensitive data and compliance risks.

StackHawk bridges the gap between security and development by providing actionable, context-rich remediation advice eliminating the backlog of unresolved security tickets in busy teams.

Every pull request is an opportunity to test, triage, and fix issues, turning security into an enabler of rapid development, not a blocker.

In 2025, StackHawk’s combination of source-level API mapping and modern, automated testing makes it a must-have for healthtech, fintech, and SaaS companies with growing API portfolios.

Specifications

StackHawk is offered as a SaaS platform, analyzing REST, GraphQL, SOAP, and gRPC APIs.

It syncs with GitHub and other SCM tools, integrates with major CI/CD systems, and provides risk-prioritized analytics, customizable workflows, and fast scan cycles.

Features

Feature set includes source repository analysis, automated security testing on every build, API type coverage, vulnerability evidence mapping, developer guidance, and flexible integration with ticketing and orchestration tools.

Reason to Buy

StackHawk is a go-to for security and development teams wanting to reduce risk across the entire API estate and fix vulnerabilities where they start: in the codebase.

Pros

• Dev-first CI/CD integration
• Complete API landscape discovery
• Automated, prioritized findings
• Integrated developer workflows
• Rich evidence and fix support

Cons

• Requires repo connectivity for deepest coverage
• Some learning curve for teams new to “shift-left” security

✅ Best For: Agile, fast-moving product teams prioritizing security automation in their dev process.

🔗 Try StackHawk here → "StackHawk Official Website"

6. Akto.io

Why We Picked It

Akto.io claims the spot as the high-performance API scanning vendor of choice for enterprises in 2025, offering the industry’s largest API test repository with over 1000 custom tests.

Covering every critical class of vulnerability, Akto’s library includes unique logic, authentication, and authorization cases missed by competitors.

The platform enables contextual, intelligent DAST without the dependency on Swagger files or Postman, replaying real user traffic and analyzing complex data flows.

Akto’s custom test rules are especially useful for organizations with unique business logic, and its plug-and-play integrations make onboarding straightforward for modern DevOps and security teams.

Rapid test authoring, real-time alerts, and seamless CI/CD automation help teams identify new vulnerabilities as production expands, driving confidence for risk-conscious organizations.

Specifications

Akto.io is SaaS-based, supporting REST, GraphQL, and other modern API types.

Key integrations include leading CI/CD tools, developer ticketing, and notification platforms. Offers centralized dashboards for compliance and risk tracking, and custom rule configuration.

Features

Features comprise the largest library of out-of-the-box and custom security tests, intelligent traffic replay, contextual findings, agile test authoring, and flexible reporting options.

Business logic flaws, authentication issues, and sensitive data exposures are prioritized.

Reason to Buy

Organizations seeking broad vulnerability coverage and rapid detection—including logic flaws and advanced authentication vectors gain strong value from Akto’s deep test library and easy deployment.

Pros

• Widest test coverage
• Intelligent, traffic-based scanning
• Custom test authoring
• Real-time results and alerts
• Seamless CI/CD linkage

Cons

• Deepest value for larger API estates
• Requires time to tailor custom tests

✅ Best For: Enterprises with demanding security requirements and complex, ever-evolving API environments.

🔗 Try Akto.io here → "Akto.io Official Website"

7. Cequence Security

Why We Picked It

Cequence Security unites automated discovery, business logic vulnerability testing, and unified API protection under one intelligent platform.

Its API Security Testing solution accelerates integration of security into development cycles reducing manual planning through AI-powered test plan generation and offering rich reporting for both security and dev teams.

Cequence’s “Intelligent Mode” delivers customized, context-aware test plans, while the platform seamlessly integrates with CI/CD pipelines and popular collaboration tools for alerting and automated remediation.

The role-based access control ensures large teams retain visibility without sacrificing effective management and data segregation.

Business logic abuse, privilege escalation, and unknown endpoint exposure are just some risks covered by Cequence’s deep testing.

Specifications

SaaS offering, with robust integrations into DevOps toolchains. Supports dynamic test generation per API/application, dashboard-based analytics, role-based management, and production/non-production reporting.

Works with Cequence AI Gateway and includes automated remediation tracking.

Features

Autonomous test plan creation, business logic and compliance validation, vulnerability reporting, workflow integrations, and coverage analytics are core features.

Teams benefit from actionable insights, scheduled/adhoc reporting, and advanced endpoint coverage.

Reason to Buy

Cequence is recommended for large organizations needing tailored security test plans, team-based management, and continuous compliance especially in regulated sectors.

Pros

• AI-powered autonomous test planning
• Integration with major CI/CD tools
• Actionable, customized findings
• Deep business logic coverage
• Visual test management

Cons

• Most effective for larger organizations
• Configuration can take initial time

✅ Best For: Large, regulated organizations seeking scalable, tailored API security testing in modern CI/CD workflows.

🔗 Try Cequence Security here → "Cequence Security Official Website"

8. Noname Security

Why We Picked It

Noname Security is at the forefront of API protection through its all-in-one platform, consolidating discovery, testing, runtime protection, and compliance into a single pane.

Active Testing is its standout feature, providing comprehensive real and simulated attack coverage ensuring that modern threats, including logic/authorization flaws, are mitigated pre-production and in live environments.

Notably, Noname’s platform handles dynamic authentication, adaptive risk assessment, and in-app guidance for fast remediation.

Regular updates to cover new attack vectors maintain its relevance and market leadership.

Specifications

Available as cloud or on-prem offerings. Supports dynamic coverage configuration, smart authentication, auto-discovery, risk scoring, and detailed analytics with compliance dashboards.

Integrates with enterprise authentication, ticketing, and SIEM tools.

Features

Coverage Center for comprehensive test feedback, continuous dynamic secret handling, adaptive testing, real-time attack prevention, and continuous updates for new threats.

Reason to Buy

Noname Security is perfect for organizations needing continuous protection, quick onboarding, and deep test coverage (especially for complex authentication flows).

Pros

• Dynamic authentication handling
• Comprehensive business logic testing
• Automated risk scoring
• Regular product updates
• Strong compliance reporting

Cons

• Configuration and tuning needed for large, diverse APIs
• Costs can be higher for smaller teams

✅ Best For: Enterprises prioritizing zero-trust and continuous testing for high-value APIs.

🔗 Try Noname Security here → "Noname Security Official Website"

9. Levo

Why We Picked It

Levo sets itself apart with its developer-first approach, automatic discovery, and comprehensive vulnerability scanning, all embedded early in the SDLC.

Its flexible architecture supports both test-user payloads and traces, mapping to OWASP API Security guidelines and advanced business logic vulnerabilities.

Levo’s risk and compliance dashboards clarify exposure and help organizations prioritize mitigation efforts. Continuous testing and smart policy suggestions foster secure releases without slowing down agile workflows.

Its transparency around data flows makes it an excellent tool for enterprises focused on privacy and compliance.

Specifications

Offers cloud-native and hybrid deployments, supports all API architectures (REST, GraphQL, gRPC), and integrates with dev pipelines for early risk detection.

Advanced analytics and reporting features address both technical and regulatory needs.

Features

Smart fuzzing, automated test generation, full coverage mapping, advanced risk analytics, customizable workflows, and developer/operations collaboration interfaces.

Reason to Buy

Levo is ideal for enterprises and fast-scaling startups needing deep, developer-centric security insights, and organizations adopting “shift-left” security as a core part of SDLC.

Pros

• Developer-first testing and analysis
• Smart fuzzing for logic flaws
• Easy SDLC integration
• Customized policy recommendations
• Risk/compliance dashboards

Cons

• Requires initial tuning for unique logic
• Best suited for developer-driven teams

✅ Best For: Developer-centric teams seeking automated, always-on API risk and compliance testing.

🔗 Try Levo here → "Levo Official Website"

10. Treblle

Why We Picked It

Treblle is an API intelligence platform blending real-time monitoring, automated security checks, and actionable risk assessment.

Its focus isn’t only on security, but also API performance, health, and lifecycle governance.

The platform excels in usability visualizing every request, mapping endpoints, and automating security audits for both large teams and solo developers.

Automated security testing is complemented by best practice suggestions. Teams can onboard APIs quickly, run security audits on every call, and get alerted to configuration or logic flaws without needing dedicated security expertise.

Its developer tools (including an easy setup process) make Treblle a go-to for modern API product teams demanding agile, pragmatic, and effective security.

Specifications

Treblle is SaaS-based with web/mobile dashboard access, supporting REST, GraphQL, and hybrid APIs.

Real-time analysis, security audits, API performance scores, and best practice guidance are included. Integrates with major development workflows and notification tools.

Features

Key features are real-time API traffic analysis, security threat detection, input validation, runtime observability, and automated security auditing. Live API health checks, endpoint mapping, and collaboration tools round out the offering.

Reason to Buy

Treblle is recommended for both small startups and large teams needing unified API observability, agile security auditing, and developer-driven operations.

Pros

• Rapid onboarding and setup
• Real-time traffic/security auditing
• Developer-centric UI
• Best practice validation
• Mobile dashboard access

Cons

• Some features still under rollout
• Local testing/deployment limitations

✅ Best For: Teams prioritizing streamlined, actionable API intelligence and security with fast deployment.

🔗 Try Treblle here → "Treblle Official Website"

Conclusion

API security is no longer a “nice to have” it’s a fundamental requirement for any business leveraging digital channels or modern software architectures.

The top 10 API security testing companies of 2025 cover a spectrum of needs: from AI-powered behavioral analytics to developer-centric “shift-left” testing, from advanced compliance dashboards to streamlined, rapid onboarding.

Choosing the right partner from this list will empower your organization to stay ahead of emerging threats, reduce the risk of breaches, and enable confident digital innovation.

Each vendor on this list offers free trials, demos, and extensive documentation test drive the solutions above and elevate your API security posture in 2025.